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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2009-01-13 14:42:01 +0100 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@hobbes.lan> | 2009-03-19 19:29:22 -0700 |
| commit | f118c0c3cff4fed39bde1863f9d59850719645cc (patch) | |
| tree | aef3aaa33d5c20c21d222e43ce295693d1f0d718 /drivers/pci/pcie/portdrv_pci.c | |
| parent | 90e9cd50f7feeddc911325c8a8c1b7e1fccc6599 (diff) | |
| download | op-kernel-dev-f118c0c3cff4fed39bde1863f9d59850719645cc.zip op-kernel-dev-f118c0c3cff4fed39bde1863f9d59850719645cc.tar.gz | |
PCI: PCIe portdrv: Do not enable port device before setting up interrupts
The PCI Express port driver calls pci_enable_device() before setting
up interrupts, which is wrong, because if there is an interrupt pin
configured for the port, pci_enable_device() will likely set up an
interrupt link for it. However, this shouldn't be done if either
MSI or MSI-X interrupt mode is chosen for the port.
The solution is to call pci_enable_device() after setting up
interrupts, because in that case the interrupt link won't be set up
if MSI or MSI-X are enabled.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pcie/portdrv_pci.c')
| -rw-r--r-- | drivers/pci/pcie/portdrv_pci.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index 5ea566e..d17611f 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -82,18 +82,13 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev, if (status) return status; - if (pci_enable_device(dev) < 0) - return -ENODEV; - - pci_set_master(dev); if (!dev->irq && dev->pin) { dev_warn(&dev->dev, "device [%04x:%04x] has invalid IRQ; " "check vendor BIOS\n", dev->vendor, dev->device); } - if (pcie_port_device_register(dev)) { - pci_disable_device(dev); - return -ENOMEM; - } + status = pcie_port_device_register(dev); + if (status) + return status; pcie_portdrv_save_config(dev); |
